Quantitative Investigation of Hand Grasp Functionality: Hand Joint Motion Correlation, Independence, and Grasping Behavior

Table 4

Basic statistics of the joint angle for all subjects.

Joints	Mean	SD	Max	Min	Range	Skewness
T-Rot	66	19	118	-19	137	-0.65
T-MCP	12	6	48	-25	73	0.10
T-IP	13	6	100	-12	112	-0.07
T-ABD	36	3	44	19	63	-1.7
I-MCP	29	8	80	-6	86	-0.10
I-PIP	41	13	81	-2	83	-0.14
M-MCP	29	6	89	-20	119	0.27
M-PIP	43	12	78	9	87	-0.36
R-MCP	37	6	92	-12	104	0.48
R-PIP	36	7	82	2	80	0.29
P-MCP	37	9	94	-6	100	0.42
P-PIP	41	13	91	4	87	0.17
I-M ABD	18	4	43	-5	48	0.34
M-R ABD	24	4	50	3	47	0.42
R-P ABD	17	4	37	2	35	0.17